ElecFreaks
Octopus Wind Speed Sensor Anemometer Three Aluminium Cups
This three-cup anemometer measures wind speed by generating a DC voltage proportional to the rotation speed of its aluminium cups. The faster the wind blows,...
Get notified when back in stock
This three-cup anemometer measures wind speed by generating a DC voltage proportional to the rotation speed of its aluminium cups. The faster the wind blows, the higher the voltage output — up to 1.2V at maximum speed. Simply read the analogue output with a microcontroller to calculate wind speed.
Designed with a rain-proof housing and a standard Octopus brick connector, it integrates easily with ElecFreaks Octopus series boards and other microcontroller platforms. The three 6 cm half-sphere cups are mounted at 120° intervals on a ~20 cm diameter rotor.
Key Features
- Analogue Voltage Output – DC voltage proportional to wind speed (up to 1.2V)
- Three Aluminium Cups – 6 cm diameter, mounted at 120° intervals
- Rain-Proof Design – Suitable for outdoor weather station use
- Octopus Brick Connector – Plug-and-play with Octopus series boards
- ±10% Tolerance – Suitable for educational and hobbyist weather monitoring
Specifications
- Cup Diameter: 6 cm
- Rotor Diameter: ~20 cm
- Output: DC voltage (0–1.2V analogue)
- Tolerance: ±10%
Ideal For
- DIY weather stations
- STEM education and science projects
- Environmental monitoring with micro:bit or Arduino
- Outdoor sensor networks
Jargon buster
Plain-language definitions for the technical terms used above.
- DC
- DC means direct current, where electricity flows in one constant direction, as supplied by batteries, USB ports and many plug-pack power supplies. When a product specifies DC, it runs from a DC supply rather than mains AC, so you need to provide the correct voltage and polarity.
- microcontroller
- A microcontroller is a small computer on a single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- Tolerance
- Tolerance tells you how far the real resistance value may be from the printed value. A 1% resistor is useful when a circuit needs more predictable behaviour than a looser 5% or 10% part.
Find this product in
Sensors & Input
Related Tutorials
Free guides on learn.littlebird.com.au
